I'm comcerened with tuning my car and inevitably losing my warranty.
Is it possible to throw in an ecu just for tuning purposes and throw in my stock ecu if ever somethingwere to go bad and I have to turn the car in for repairs?

Fyi I intend on just have a drop in filter and cat back as far as mods. Easily swapped out if the car needed to be inspected by mitsu techs.

 

You have access to an extra Evo X ecu? Just lying around perhaps...